JP3131834B2 - Ground plate for PC card connector assembly - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a PC card connector assembly, and more particularly, to a simple grounding of a PC card connector assembly that allows the PC card connector assembly to be easily assembled on a printed circuit board. Pertaining to the plate.

[0002]

2. Description of the Related Art A conventional PC card connector assembly for receiving a PCMCIA (personal computer memory card interface association) type card has a signal terminal 1B for connecting a signal contact of the card to a corresponding signal trace on a printed circuit board. And a ground terminal 1 for contacting the corresponding ground contact on the card
And a separate ground plate containing A, the ground plate has a plurality of ground solder tails are soldered to the ground traces on the printed circuit board in order to commonly connect it to the grounding point of the printed circuit board (See FIGS. 1 and 2) .

[0003]

However [0007] Many of the ground plate of the known PC card connector assembly on production is difficult, the assembly is complicated. In addition, many known
The ground plate includes a shield portion that extends over a portion of the signal terminal of the connector, which includes a signal terminal and an underlying portion.
Inspection of solder joints with printed circuit boards makes it difficult, if not impossible. This configuration can also cause unwanted open or short circuits. Further, in some known ground plates, the connection to the printed circuit board is under a portion of the connector, thus making it difficult to visually inspect the solder connection of the ground terminal. Also many known
The grounding plate comprising solder tails extending through the thickness of the printed circuit board, which prevents the lower surface of the component arrangement of the printed circuit board, as well as take up valuable surface area of the printed circuit board, the component density in electronic device Lower. Furthermore, many known ground plate, so assembled viz horizontally sliding the connector thereunder, can not adapt to the automatic assembly assembling the components only in the vertical direction.

[0004]

SUMMARY OF THE INVENTION It is an object of the present invention to provide a simple ground plate for a PC card connector assembly which overcomes these problems. The ground plate of the present invention is easy to manufacture and assemble into a connector. Further, the ground plate extends over the top surface of the connector,
It does not include a portion of the signal terminal that extends over the signal solder tail, so that the solder joint of the signal terminal can be visually inspected,
Prevent the occurrence of a short circuit condition. The solder connection between the ground plate and the printed circuit board is a true surface mount, i.e., does not extend through the printed circuit board, and the connection location is outside the area occupied by the connector. Therefore, the solder joint between the ground plate and the printed circuit board can be visually inspected. In addition, the ground plate
Assembled vertically in the connector and the printed circuit board, without the need for horizontal assembly or engagement of the connector, thus facilitating the automatic assembly of the connector assembly of the printed circuit board.

[0005] The ground plate of the present invention is a connector for a pre-connector.
Along the top surface opposite the surface facing the surface of the printed circuit board.
An elongated rectangular main body that can be attached
Extends from one longitudinal edge to contact the corresponding contact on the PC card
A plurality of ground pins that can be touched, and a longitudinal direction of the main body.
From both ends toward the surface of the printed circuit board
Ground solder that is surface soldered and connected to the ground trace
Consists of a tail. Take this ground plate to the connector
When the PC card connector assembly is constructed by attaching
The grounding solder tail on the ground plate is
Outermost signal solder of multiple aligned signal solder tails
Adjacent to the outside of the tail, the signal half of multiple signal terminals
Solder joint on the tail plate and the ground solder
All solder joints are almost straight on the surface of the printed circuit board
The PC card connector is aligned and exposed to the line.
Signal when soldering the assembly to a printed circuit board.
Between solder tail and printed circuit board and ground solder tail
Prints both solder joints between the board and the printed circuit board
It allows visual inspection from above the surface of the circuit board.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below in detail with reference to the accompanying drawings. FIGS. 3 to 5 show a simple ground plate 1 of a PC card connector assembly according to the invention, the PC card connector assembly comprising a surface-mounted ground solder tail 3 provided at both ends of the ground plate 1. The printed circuit board 7 under it
To be surface connected. Ground plate 1, on top of the connector 5
It has an elongated rectangular main body 4 attached to the surface . The plurality of ground pins 2 extend in the same plane as the main body 4 and away from one longitudinal edge of the main body 4 and are capable of contacting corresponding ground contacts of a mating card such as a PCMCIA card. You. A plurality of through holes 6 are formed in a part of the main body 4, and these through holes 6 cooperate with a part of the connector 5 to fix the ground plate 1 to the connector 5.

[0007] The two ground solder tails 3 are the length of the main body 4.
Hang from both ends in the hand direction , and the printed circuit board under it
7 are surface mounted to corresponding ground traces and connect the ground point of the card to the ground circuit of the printed circuit board 7 in common. Ground plate 1 is attached to both ends of main body 4
By connecting to the printed circuit board 7 , unlike the known ground plate structure (FIGS. 1 and 2),
1 can be kept open in the region of the signal solder tail 9 of the signal terminal 8, thus, to facilitate the assembly of the PC card connector assembly, the connector 5 of the signal terminal 8
The solder joint of the signal solder tail 9 can be visually inspected, and the occurrence of a short circuit between the ground plate 1 and the signal terminal 8 can be reduced.

Furthermore, half of the signal solder tail 9 of the signal terminal 8
This connection position of the ground solder tail 3 with respect to the printed circuit board 7 which is substantially aligned with the field joint allows the visual inspection of the solder joint of the ground solder tail 3 to be performed optimally, and furthermore, the printed circuit board 7 It allows components and / or other connectors to be mounted at a high density and allows the connector assembly to be automatically assembled to a printed circuit board 7 . That is, the ground solder tail 3 to the printed circuit board 7
Connection is true surface mounting, thus, purine
Not extend to the opposite side of the bets circuit board 7 (back side), therefore, unlike the known ground solder tails, electronic components anywhere on the opposite surface of the printed circuit board 7 can be mounted at high density. The connection position of the ground solder tails 3 for printed circuit board 7, because it is within the boundaries of the PC card connector assembly can be disposed at a high density and another part also on the same surface of the printed circuit board 7. Further, after the PC card connector assembly is fixed to the printed circuit board 7 , the solder joint of the ground solder tail 3 is connected to the solder joint of the signal solder tail 9.
It can be visually inspected together .

Furthermore, JP <br/> Features of the surface mounting of the ground plate 1, together with not requiring horizontal engagement or assembly with the connector 5 can be automatically assembled ground plate 1 and the connector 5 To do. That is, the connector 5 can be mounted on the printed circuit board 7 in the vertical direction, and the ground plate 1 is mounted on the connector 5 in the same direction, and the ground 5 can be grounded in a direction different from the mounting direction of the connector 5 and the printed circuit board 7. There is no need to attach or assemble the plate 1 .

[0010]

As is apparent from the above description, the present invention is easy to manufacture and assemble into a connector and does not include a portion extending over the top surface of the connector and extending over the signal solder tail of the signal terminal, and solder joint of the signal terminals
Parts can be visually inspected and the occurrence of short circuits can be prevented; furthermore, the solder connection with the printed circuit board is a true surface mount, i.e. it does not extend through the printed circuit board, and the connection position is Outside the occupied area, and furthermore, the ground plate of the PC card connector assembly, which is vertically assembled to the connector and the printed circuit board, so that the connector assembly can be easily and automatically assembled on the printed circuit board. sponsored.

[Brief description of the drawings]

[1] is assembled to the connector transmural printed circuit board
1 is a perspective view of a conventional PC card connector assembly having a ground plate fixed in a through hole.

FIG. 2 is an exploded perspective view of the conventional PC card connector assembly shown in FIG. 1, showing a ground plate removed from the connector.

FIG. 3 is a perspective view showing the PC card connector assembly of the present invention in an assembled state.

FIG. 4 is an exploded perspective view of the PC card connector assembly of the present invention, showing a ground plate removed from the connector.

FIG. 5 is a top view of the PC card connector assembly of FIG. 3;

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Ground plate 2 Ground pin 3 Ground solder tail 4 Main body 5 Connector 6 Through hole 7 Printed circuit board 8 Signal terminal 9 Signal solder tail

Continuation of front page (56) References JP-A-10-40982 (JP, A) JP-A-6-60940 (JP, A) JP-A-8-255656 (JP, A) JP-A-10-32047 (JP, A) JP-A-11-40289 (JP, A) JP-A-10-125406 (JP, A) JP-A-10-116654 (JP, A) JP-A-4-6183 (JP, U) JP 6-2228 (JP, Y2) Table 10-506222 (JP, A) Patent 2589178 (JP, B2) (58) Fields investigated (Int. Cl. ⁷ , DB name) H01R 13/648-13/658 H01R 12/14-12/28 H01R 24/08

Claims (4)

(57) [Claims] 1. A PC card connector assembly for connecting a PC card to a printed circuit board 7, the table with the signal traces provided on the surface of the printed circuit board 7
One row of signal solder tails 9 connected by surface soldering
5 having a plurality of signal terminals 8 aligned with each other
And a ground plate 1 attached to the connector 5, wherein the ground plate 1 is mounted on the printed circuit board 7.
Surface soldering to ground traces on the surface
PC card connector with grounded solder tail 3 connected
In Kuta assembly, the ground plate 1 is opposed to the surface of the printed circuit board 7 of the connector 5 surface
And an elongated rectangular main body 4 which is attached along the upper surface of the opposite, a plurality of ground pins 2 that is contactable with the corresponding contacts of the PC card extends from one longitudinal side edge of the main body 4, The printed circuit board 7 from both ends in the longitudinal direction of the main body 4
Surface soldered to the ground trace above
Morning is to consist the ground solder tails 3 which is connected, grounding solder tail 3 of the ground plate 1, the connector
Of a plurality of signal solder tails 9 aligned with the signal terminals 8 of the
Adjacent to the outermost signal solder tail 9
Of the signal solder tail 9 of the signal terminal 8 of the
All of the solder joints on the ground solder tail 3 of the plate 1
It will be almost aligned and exposed on the surface of the lint circuit board 7
When the PC card connector assembly is soldered to the printed circuit board 7 , the signal solder tail 9 and the printed circuit board 7 and the ground solder tail 3 and the printed circuit board 7
A PC card connector assembly characterized in that both solder joints can be visually inspected from above the surface of the printed circuit board 7 . 2. The P of claim 1, wherein the main body of the ground plate includes fixing means cooperating with a portion of the connector for fixing the ground plate to the connector.
C card connector assembly. Wherein said fixing means 6, PC card connector assembly of claim 2 wherein the through hole 6 formed in the main body 4. 4. The connector 5 is mounted on a printed circuit board 7 .
Vertically mounted and the ground plate 1
The PC card connector assembly according to claim 1, wherein the PC card connector is attached to the connector 5 only in a vertical direction.